Thank you for your fast reply.

Regarding your suggestion for using Advanced Serial Data Logger, which version do you suggest I try? 

What I need to do is to send a HEX string every 100ms to a TCP/IP port in client mode.  I'd like this function to start whenever Windows boots and preferably run as a service.

Thank you,

rmfuller

Hi,

Yesterday I downloaded COM Port Data Emulator and it seems as though it will solve my need for sending a periodic "Keep Alive" packet to my Ham Radio.  I'm running the radio remotely via the Internet.

Is there a way, or a version, of COM Port Data Emulator that will run as a service, or that I can put in the "Startup" folder so that it will not only run, but so that the "Start" button will activate?

Thank you.  I look forwrd to your reply.

Bob Fuller